jsp第二周作业

1.p39 实验2 显示当前时间，并输出上午(0-12)好,下午好(13-17),晚上好(18-23)

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    
    <title>My JSP 'index.jsp' starting page</title>

  </head>
  
  <body>
<%
//java注释
Calendar y=Calendar.getInstance();
int year=y.get(Calendar.YEAR);
int month=y.get(Calendar.MONTH)+1;
int day=y.get(Calendar.DAY_OF_MONTH);
int hour=y.get(Calendar.HOUR_OF_DAY);
int minute=y.get(Calendar.MINUTE);
if(hour<12){
out.print("早上好~");}
else if(hour==12){
out.print("中午好~");
}
else{
out.print("下午好~");}
 %>
<h2>
用户在<%=year %>/<%=month %>/<%=day %>
<%=hour %>:<%=minute %>使用浏览器
</h2>
  </body>
</html>

 

2. 使用声明方法,在页面调用该方法,判断2023是不是闰年

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <title>My JSP 'MyJsp.jsp' starting page</title>

  </head>
  <!--html注释 -->
  <body>
   <%!String zuoye(int year) {
   if(year%4==0&&year%100!=0||year%400==0){
   return year + "闰年";
   }else{return year + "平年";} }%>
<%
String yearr=zuoye(2021);
out.print(yearr);
 %>

  </body>
</html>

3.表达式+程序段 循环输出5条hr,长度分别为100px-500px
<hr width="<%=i%>"

 

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <title>My JSP 'MyJsp1.jsp' starting page</title>
  </head>
  <%--jsp注释 --%>
  <body>
<%for(int i=1;i<5;i++){ %>

<hr width="<%=i*100%>px">
<%
}
 %>

  </body>
</html>

 

 

 

 

4.在第一题上加Java注释,第二题加html注释,第三题加jsp注释

 

posted @ 2022-03-14 11:45  高畅  阅读(30)  评论(0)  编辑  收藏  举报